1. Laboratory of Biology, Ecology and Health, Faculty of Sciences, Abdelmalek Essaâdi University, Tetouan, Morocco
2. National Federation Associations of Healers and Practitioners of Medicine, The Ministry of Public Health of Chad, N’Djamena, Chad
3. Faculty of Human Health Sciences (FSSH), University of N’Djamena, N’Djamena, Chad
4. Toumaï University of N’Djamena, N’Djamena, Chad
5. Independent Consultant, Maitland, FL, USA
6. Faculty of Exact Applied Sciences, Department of Earth Sciences, N’Djamena University, N’Djamena, Chad
7. Laboratory of Geology and Oceanology, Geology Department, Faculty of Sciences, Abdelmalek Essaâdi University, Tetouan, Morocco
8. Laboratory of Innovative Technologies, Civil Engineering Department, National School of Applied Sciences ENSA-Tangier, Abdelmalek Essaâdi University, Tetouan, Morocco